Investigators said Lacey Spears was desperate for attention and used her son as a tool to make that happen by publicly documenting his condition.

Spears brought her son to Nyack Hospital in Rockland County on Jan. 17, reporting he was having seizures. Two days later, with no medical explanation, Garnett-Paul's sodium levels rose to an extremely dangerous level.

Spears was sharing her son's hospital room, and prosecutors said the mother administered sodium through the boy's stomach tube. The boy was then transferred to the Westchester Medical Center, where he died.

"During the afternoon, that child goes from moderate to severe cerebral dysfunction," prosecutor Doreen Lloyd said in court. "And as that is going on, this child's sodium level is going up. It coincides with the actions of this defendant."

The Westchester County district attorney says doctors there suspected Spears was harming her son and called New York state children's services, which launched an investigation.

Spears, who pleaded not guilty, documented her son's various health problems using a public blog.

Spears was ordered held without bail.

Unsolved Massachusetts murders, disappearances

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One of Boston's strangest unsolved murders involves a Swedish au pair, Karina Holmer, 20, who's severed body was found in a Back Bay dumpster after a night out with friends in 1996.